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MAGNETOSPHERE

Galileo

Previous missions to Jupiter were mere flybys, zooming by the planet and making quick measurements of the magnetosphere's size, shape, and structure--a mere snapshot of a complex and dynamic region. But because Galileo orbited Jupiter, it was able to study the magnetosphere over an extended period of time, revealing how it interacts with Jupiter's large moons and atmosphere. Likewise, Juno will orbit the giant planet, studying it for an entire year.